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Radeon HD 5850 vs Radeon R9 M390X

Intro

The Radeon HD 5850 comes with a GPU core speed of 725 MHz, and the 1024 MB of GDDR5 memory is set to run at 1000 MHz through a 256-bit bus. It also is made up of 1440(288x5) Stream Processors, 72 TAUs, and 32 Raster Operation Units.

Compare those specs to the Radeon R9 M390X, which uses a 28 nm design. AMD has clocked the core frequency at 723 MHz. The GDDR5 memory is set to run at a frequency of 1250 MHz on this model. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M390X 125 Watts
Radeon HD 5850 151 Watts
Difference: 26 Watts (21%)

Memory Bandwidth

The Radeon R9 M390X, in theory, should be a lot faster than the Radeon HD 5850 in general. (explain)

Radeon R9 M390X 160000 MB/sec
Radeon HD 5850 128000 MB/sec
Difference: 32000 (25%)

Texel Rate

The Radeon R9 M390X should be quite a bit (more or less 77%) better at texture filtering than the Radeon HD 5850. (explain)

Radeon R9 M390X 92544 Mtexels/sec
Radeon HD 5850 52200 Mtexels/sec
Difference: 40344 (77%)

Pixel Rate

The Radeon HD 5850 will be a little bit (approximately 0%) faster with regards to AA than the Radeon R9 M390X, and should be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 5850 23200 Mpixels/sec
Radeon R9 M390X 23136 Mpixels/sec
Difference: 64 (0%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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Radeon HD 5850

Amazon.com

Check prices at:

Radeon R9 M390X

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 5850 Radeon R9 M390X
Manufacturer AMD AMD
Year September 30, 2009 2015
Code Name Cypress PRO Tonga
Memory 1024 MB 4096 MB
Core Speed 725 MHz 723 MHz
Memory Speed 4000 MHz 5000 MHz
Power (Max TDP) 151 watts 125 watts
Bandwidth 128000 MB/sec 160000 MB/sec
Texel Rate 52200 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 23200 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 1440(288x5) 2048
Texture Mapping Units 72 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 2154 million (Unknown) million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 5850

Amazon.com

Check prices at:

Radeon R9 M390X

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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